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Speaker: Nicola Neri (INFN) – Title: Probing Charm Baryon Dipole Moments at the LHC with ALADDIN
August 14 @ 4:00 pm - 5:00 pm
Research Progress Meeting
Date: August 14, 2025
Time: 4:00- 5:00 pm
Location: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]
Speaker: Nicola Neri (INFN)
Title: Probing Charm Baryon Dipole Moments at the LHC with ALADDIN
Abstract: The magnetic and electric dipole moments (MDM and EDM) of charm baryons have yet to be measured. These fundamental properties are sensitive probes of non-perturbative QCD dynamics and potential signatures of physics beyond the Standard Model. The proposed ALADDIN experiment at the LHC aims to perform the first direct measurement of charm baryon dipole moments by exploiting spin precession in bent crystals, within a dedicated fixed-target setup.
In this novel scheme, protons from the LHC beam halo are steered by a bent crystal (“crystal kicker”) onto a tungsten target, producing charm baryons with energies up to the TeV scale. These baryons are then captured and channeled by a second bent crystal, where their spins undergo precession under strong electromagnetic fields — allowing the extraction of their dipole moments.
A recent proof-of-principle test, TWOCRYST, has successfully demonstrated the viability of this two-crystal configuration in the LHC environment. These results are a key step in validating the experimental concept and guiding the optimization of the ALADDIN setup.
In this talk, I will present the physics case for ALADDIN, detail the experimental technique and detector concept, and provide an update on ongoing detector R&D efforts. I will also report on recent results from the TWOCRYST test, which mark a significant milestone toward realizing this ambitious measurement program.
https://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09
Meeting ID: 988 5432 2464
Passcode: 142239